光突发交换及其关键技术     

李俭兵  付琳 《成都信息工程学院学报》2003,18(1):31-35

光突发交换是光通信领域中的前沿和热点技术，以光突发交换的产生揭示了其演进历史，详细介绍了光突发交换的主要思想，并对光突发交换和光电路、分组交换进行了比较，最后简略介绍了当前关键技术的研究情况。  相似文献   

OPS mélange: a new term for mélanges of convergent margins of the world     

Koji Wakita 《International Geology Review》2015,57(5-8):529-539

Ocean plate stratigraphy (OPS) is essential to understanding accretionary wedges and complexes along convergent plate margins. Mélanges within accretionary wedges and complexes are the products of fragmentation and mixing processes during and following OPS accretion. A new term, ‘OPS mélange’, is proposed here for mélanges composed mostly of blocks of OPS with an argillaceous matrix, and for a mixture of mélanges of multiple origins with either broken or coherent formations. An OPS mélange results from the fragmentation and disruption of OPS, without admixing of other components. Three major types of OPS mélange can be distinguished on the basis of their components: turbidite type, chert–turbidite type, and limestone–basalt type. These three types potentially form similar mélanges, but they are derived from different parts of the OPS, depending on the level of the decollement surface. The concept of ‘OPS mélange’ can be applied to most of the mélanges in accretionary prisms and complexes worldwide. In addition, this proposal recognizes a distinction between processes of fragmentation and mixing of OPS components, and mixing of ophiolite components, the latter of which results in serpentinite mélanges, not OPS mélanges. Mélanges composed of OPS sequences occur worldwide. The recognition of OPS mélanges is a key aspect of understanding tectonic processes at convergent margins, which result in mélange formation in orogenic belts globally.  相似文献